One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,4)(3,8,5,7)(9,10,13,11)(12,15,16,14)(17,18)(19,20)(21,29)(22,23)(24,27)(25,31)(26,32)(28,30)(10,11)(14,15)(18,23)(20,24)(25,29)(28,32) involution — undirected(1,3,6,5)(2,7,4,8)(9,11,13,10)(12,15,16,14)(17,19)(18,24)(20,23)(21,26)(22,27)(25,32)(28,29)(30,31)(1,3,6,5)(2,8,4,7)(9,12,13,16)(10,14,11,15)(17,20,22,24)(18,19,23,27)(21,28,31,32)(25,26,29,30)(1,4,6,2)(3,8,5,7)(17,19)(18,20)(21,30)(22,27)(23,24)(25,32)(26,31)(28,29)(1,5,6,3)(2,8,4,7)(17,21,22,31)(18,25,23,29)(19,26,27,30)(20,28,24,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.